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SHARE-BASED COMPENSATION PLANS AND AWARDS Part 2 (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Share-based compensation expense, retirement eligibility preceding the requisite vesting period | $ 3 | $ 3 | $ 2
Remaining contractual term and weighted average exercise prices of stock options [Abstract] |  |  |
Number Outstanding at end of period (in shares) | 3,479,300 |  |
Weighted-Average Remaining Contractual Life (in years) | 6 years 9 months 18 days |  |
Weighted-Average Exercise Price (in dollars per share) | $ 80 |  |
Number Exercisable at end of period (in shares) | 2,077,600 |  |
Weighted-Average Exercise Price (in dollars per share) | $ 74 |  |
Exercise price of options lower range (in dollars per share) | 38 |  |
Exercise prices of options upper range (in dollars per share) | $ 104 |  |
Prices of $38-$50 [Member] |  |  |
Remaining contractual term and weighted average exercise prices of stock options [Abstract] |  |  |
Number Outstanding at end of period (in shares) | 176,700 |  |
Weighted-Average Remaining Contractual Life (in years) | 1 year 6 months |  |
Weighted-Average Exercise Price (in dollars per share) | $ 39 |  |
Number Exercisable at end of period (in shares) | 176,700 |  |
Weighted-Average Exercise Price (in dollars per share) | $ 39 |  |
Exercise price of options lower range (in dollars per share) | 38 |  |
Exercise prices of options upper range (in dollars per share) | $ 50 |  |
Prices of $51-$73 [Member] |  |  |
Remaining contractual term and weighted average exercise prices of stock options [Abstract] |  |  |
Number Outstanding at end of period (in shares) | 720,500 |  |
Weighted-Average Remaining Contractual Life (in years) | 5 years 10 months 24 days |  |
Weighted-Average Exercise Price (in dollars per share) | $ 67 |  |
Number Exercisable at end of period (in shares) | 625,100 |  |
Weighted-Average Exercise Price (in dollars per share) | $ 66 |  |
Exercise price of options lower range (in dollars per share) | 51 |  |
Exercise prices of options upper range (in dollars per share) | $ 73 |  |
Prices of $74-$89 [Member] |  |  |
Remaining contractual term and weighted average exercise prices of stock options [Abstract] |  |  |
Number Outstanding at end of period (in shares) | 1,985,100 |  |
Weighted-Average Remaining Contractual Life (in years) | 7 years 1 month 6 days |  |
Weighted-Average Exercise Price (in dollars per share) | $ 81 |  |
Number Exercisable at end of period (in shares) | 1,076,800 |  |
Weighted-Average Exercise Price (in dollars per share) | $ 79 |  |
Exercise price of options lower range (in dollars per share) | 74 |  |
Exercise prices of options upper range (in dollars per share) | $ 89 |  |
Prices of $90-$104 [Member] |  |  |
Remaining contractual term and weighted average exercise prices of stock options [Abstract] |  |  |
Number Outstanding at end of period (in shares) | 597,000 |  |
Weighted-Average Remaining Contractual Life (in years) | 8 years 2 months 12 days |  |
Weighted-Average Exercise Price (in dollars per share) | $ 104 |  |
Number Exercisable at end of period (in shares) | 199,000 |  |
Weighted-Average Exercise Price (in dollars per share) | $ 104 |  |
Exercise price of options lower range (in dollars per share) | 90 |  |
Exercise prices of options upper range (in dollars per share) | $ 104 |  |
Stock Option [Member] |  |  |
Remaining contractual term and weighted average exercise prices of stock options [Abstract] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value | $ 18 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ 17 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term | 5 years 6 months |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees, due to retirement eligibility preceding the requisite vesting period. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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